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Finding the Fourth Proportional to 67,722.36, 101,625.06 and 30,314.06

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Solution

The fourth proportional to 67,722.36, 101,625.06 and 30,314.06 is: 45,489.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    67,722.36 : 101,625.06 = 30,314.06 : x
  2. Step 2: Convert to fraction form
    67,722.36/101,625.06 = 30,314.06/x
  3. Step 3: Cross multiply
    67,722.36x = 101,625.06 × 30,314.06
  4. Step 4: Simplify right side
    67,722.36x = 3,080,668,724.63
  5. Step 5: Solve for x
    x = 3,080,668,724.63/67,722.36
  6. Step 6: Final answer
    x = 45,489.68

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.